Howto & Style
Computer Scientist Answers Computer Questions From Twitter
Professor and computer scientist David J. Malan joins WIRED to answer your computer and programming questions from Twitter. How do search engines compile information so quickly? Which operating system is best? How do microchips work? Director: Justin Wolfson Director of Photography: Jack Belisle Editor: Patrick Biesemans Talent: David J. Malan Line Producer: Joseph Buscemi Associate…
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ItzProGamer
August 29, 2023 at 8:08 pm
Wow!
João Guerreiro
August 29, 2023 at 8:11 pm
What an awesome video! I think it would be great to have a Computer Scientist explain Artificial Intelligence in a next video!
Boris Trofimov
August 29, 2023 at 8:14 pm
man, I want to someday meet David and thank him for the inspiration and for the cs50🙂
Puttums FTW
August 29, 2023 at 8:21 pm
This dude definitely has a super computer.
yotta km
August 29, 2023 at 8:29 pm
CS50 GANG LINE UP
Xͯ
August 29, 2023 at 8:29 pm
CS50 GOAT
theycallme_nightmaster
August 29, 2023 at 8:30 pm
people really don’t understand what a computer scientist does lol imagine asking a mathematician about basic IT stuff
Red Hausser
August 29, 2023 at 8:31 pm
My God this guy is like he has a permanent a caffeine overdose and I’m all down for it.
HystericalMafia
August 29, 2023 at 8:32 pm
I recently was watching his Harvard CS50 course on youtube and just see this. He explains it so much better than alot of others.
Luis Camarillo
August 29, 2023 at 8:34 pm
The hello world opening is such an Easter egg. That normally the first code you have to do when you are learning
Moritz Fischer
August 29, 2023 at 8:38 pm
He was great! Thank you for this video and your time ❤
[:NET:] rō'nin 浪人
August 29, 2023 at 8:39 pm
Cache
Diego Caro
August 29, 2023 at 8:40 pm
Love that you have K&R there ❤
Piotr PRS
August 29, 2023 at 8:40 pm
his parents gave him name “Profesor”? rolf…. I waiting for next level of stupidity… and name “general”. 😀
Piotr PRS
August 29, 2023 at 8:41 pm
waste of time….
Jeremy Wiseman
August 29, 2023 at 8:44 pm
I can just see the Apple fans gritting their when he said “Windows” and gestured to the Macbook.
Josue Viana
August 29, 2023 at 8:55 pm
David truly is the GOAT of teaching and explaning the denser computer related stuff
marwar
August 29, 2023 at 8:59 pm
Man, I loved CS50 (HarvardX) with him as the instructor! I wish all our teachers and professors were as enthusiastic in explaining concepts as David is about Computer Science.
Bernard Lim
August 29, 2023 at 9:00 pm
K&R C 🤩
Bourke Floyd
August 29, 2023 at 9:09 pm
What is Twitter? 😂
jshumphress13
August 29, 2023 at 9:15 pm
I’m not judging, but what’s the over/under on this guy being on the board of some AI company?
Daniel
August 29, 2023 at 9:22 pm
Professor David Malan the GOAT
Emme B's channel
August 29, 2023 at 9:25 pm
His CS50 course is the BEST!!
Xeonerable
August 29, 2023 at 9:31 pm
His answer for the binary question was strange to me. I thought it was more or less because transistors only know on and off and that’s it?
Aaron
August 30, 2023 at 1:41 pm
I think a significant percentage of programing jobs will be taken over by AI.
Muneeb Mohd
August 30, 2023 at 1:55 pm
Y’all might not know him but I really suggest you check him out if you are into computer science. Especially the CS50 course on YouTube by him, it’s free as weel.
Anas Ramadhan
August 30, 2023 at 2:03 pm
didn’t know Jimmy McGill has a Professor degree in Computer Science
Alpine
August 30, 2023 at 2:16 pm
FINALLY someone who actually understands why CPUs, GPUs and Ram and such is getting more expensive.
Nik
August 30, 2023 at 2:19 pm
The GOAT
Matt Gordon
August 30, 2023 at 2:21 pm
David Malan is a rock star teacher. I’m not saying everyone should take his free version of CS50, but I can’t think of anyone who shouldn’t.
I Care
August 30, 2023 at 2:22 pm
11:20 counting higher than 3?! Someone get this man to valve
Mauro
August 30, 2023 at 2:27 pm
Still it’s 2023 and no one has ever found a use case for the “decentralized web”. The web3 scam will never happen.
FriskoDisko _
August 30, 2023 at 2:31 pm
I want more videos with him!
iCode
August 30, 2023 at 2:51 pm
This man is an absolute legend and deserves all the recognition. One of the best teachers online and the best in his field imo
Shikher Srivastava
August 30, 2023 at 3:04 pm
lol if these people put these questions into Google instead of Twitter, they would have gotten an answer much sooner.
mankala8
August 30, 2023 at 3:15 pm
“Why aren’t computers getting cheaper?” “300mhz in 1997 ~ $2500. 1000mhz in 2023 ~ $10.”
Juan Jose Corella
August 30, 2023 at 3:24 pm
My goat
allxn
August 30, 2023 at 3:32 pm
This is CS50 ❤
Brad DeAngelis
August 30, 2023 at 3:48 pm
DAVID!!!!!!! YES!!!!!!! Best lecturer I’ve ever had!
MyEconomics101
August 30, 2023 at 3:51 pm
Not as engaging when he does not run around on a stage and dripping sweat doing it, teaching and running, at the same time.
d3j4v00
August 30, 2023 at 4:21 pm
“…or Bing.”
Artrocker65
August 30, 2023 at 4:32 pm
666 comments no more
Romain G
August 30, 2023 at 4:34 pm
2:32 you answered a completely different (and simpler) question
Taiga
August 30, 2023 at 5:00 pm
Internet is a series of tubes
Kalhua no Azúcar
August 30, 2023 at 5:36 pm
Big brain time
Renz0
August 30, 2023 at 6:42 pm
I’m an IT teacher. Taking down notes cos he really explains it well.
Cruz Monrreal
August 30, 2023 at 7:31 pm
The only thing I take issue with this otherwise good video is that bad software (in reference to “why does restarting fix things?”) can put the computer in a bad state.
All of the examples shared were based on the USER doing something wrong, when let’s be real, writing bad software is ALSO to blame.
Vibration
August 30, 2023 at 7:51 pm
very good at providing explanations and educating. u can tell he’s passionate!
Matias Ezequiel Traian
August 30, 2023 at 9:41 pm
is name is Professor?
Zordiak
August 31, 2023 at 10:24 am
He didn’t really answer the hunk of metal question.
The answer is there are these things called logic gates. Which take multiple inputs of electricity (2 wires) and produce an output of electricity (3rd wire).
An AND gate produces electricity in its output when BOTH of its inputs have electricity running through them
An OR gate produces electricity in its output when EITHER ONE of its inputs have electricity running through them
Logic gates are the building blocks of computers.
The logic gates themselves are made with transistors.
Tejas
August 31, 2023 at 10:57 am
Twitter?
What is that?
Syed Mudassir
August 31, 2023 at 11:47 am
I don’t like them 🍎🍏🍎😂😂😂😂
Tranzi
August 31, 2023 at 11:50 am
It’s X. Not twitter.
Jose Bäßler
August 31, 2023 at 12:25 pm
and you never got into the iota foundation
Mita Pala
August 31, 2023 at 1:32 pm
I did CS50 online. This guy is amazing.
Cassandra
August 31, 2023 at 1:38 pm
Cosmic rays affecting memory is a reason for the reboot. An application closing and restarting should fix bugs. If it’s a one off that never happened before and doesn’t happen again, it’s cosmic rays apparently.
Michael Seneschal
August 31, 2023 at 1:59 pm
This guy does a great job not only explaining things in an understandable way, BUT doing so in a positive and neutral way. And I think that positivity is the most important thing. Ie., someone could explain these topics in a way that’s easy to understand but with a negative tone (starting flame war RE: best OS, etc.). This guy is great.
connorchil
August 31, 2023 at 2:02 pm
Holy it’s David!
Aishwary
August 31, 2023 at 2:03 pm
Let’s go so happy to see David here
Aadil Farooqui
August 31, 2023 at 2:04 pm
Did this dude just literally compare current, continuously developing, and future AI with website code-writing software?
Rob R
August 31, 2023 at 2:20 pm
“Hello World!” Did noone else get that?
Iconik123
August 31, 2023 at 2:22 pm
The goat
Frederik S
August 31, 2023 at 2:39 pm
The fact that he uses the term “logic board” over “motherboard” made his credibility plummet 😅
Yug Shende
August 31, 2023 at 2:44 pm
You’re a rockstar man. A ROCKSTARRRRRR
ADAM MAHAD
August 31, 2023 at 3:41 pm
I owe david a lot. he helped me harness my full potential.
KAUSTAV ROY
August 31, 2023 at 4:02 pm
The way he explained web3 instantly I became a FAN.
Andreas Greek
August 31, 2023 at 4:03 pm
Dude needs to speak slower
EYESWEYEDOPEN
August 31, 2023 at 5:26 pm
Harvard’s CS50 is the BEST course. Prove me wrong!
Jonathan Surgeon
August 31, 2023 at 5:51 pm
what is twitter?
Seifeddin TALBI
August 31, 2023 at 6:04 pm
This is how teachers should be ❤
Bashar
August 31, 2023 at 7:11 pm
WE want more of these !
Audacious
August 31, 2023 at 7:23 pm
I have to wonder why people are asking questions on Twitter of all places. You’re already on the internet, just look it up
Glue_Gunner4
August 31, 2023 at 8:11 pm
The second he said “Hello, World!”, I new he knew what’s up
Tanner Davies
September 1, 2023 at 3:42 pm
The first question about why search engines are fast might have been misunderstood. Yes, there is the cloud computing aspect to how Google can handle so many requests simultaneously. However, there is also the question of “how can a machine, even a distributed network of machines, search through so much data (i.e. basically Google’s index of the whole internet) so quickly”?
The answer is a Trie data structure. It takes a query that could have a Big-Oh complexity O(N*L) where N is the number of items being searching and L is the length of the query (i.e. the text being searched) and makes it an O(L) query, meaning the amount of data in the index doesn’t really impact the runtime of the algorithm. Very, very nifty.
theacp127
September 1, 2023 at 4:10 pm
The idea of computer science really is the combination of mathematics and logic to create automated systems with computers to solve problems. A typical kind of problem that a computer scientist would need to solve is how to identify, keep track of, and search through a massive list of items in a database. We would use code to tell the computer what the system we designed is, but the real skill is knowing how to design a good system in the first place.
Armaan Nagra
September 1, 2023 at 4:17 pm
I thought he was about to say “This is CS50” at 0:06
Mauro Lima
September 1, 2023 at 4:18 pm
I’ve had bad teachers all my life.
This guy is amazing just ’cause he’s simple in explaining.
Someone said “The top of sophistication is SIMPLICITY”!
He’s the only reason I want that certification of Harvard. This guy I want to hear, watch and learn.
CK Gaming Channel
September 1, 2023 at 4:33 pm
Electrons move faster than Neurons, that is why.
ρεωρεω δνοοπ
September 1, 2023 at 4:37 pm
every cs majors first love❤❤❤
Mdotmuzamil
September 1, 2023 at 4:41 pm
Everything on point
Rifou Says Podcast
September 1, 2023 at 4:41 pm
I was sold the moment he said “Hello World”
Mehak Dora
September 1, 2023 at 5:16 pm
no one can match his energy !!!
Forshledian
September 1, 2023 at 6:26 pm
This guy has public speaking down
Matías Jaeger P.
September 1, 2023 at 6:29 pm
The GOAT ❤
ForTheHomies
September 1, 2023 at 6:31 pm
The simplest way to understand binary is to analogize it to short-form texting. “Just kidding” can be understood by saying “jk”, just like a certain number or letter or words can be understood by a computer as a string of 0s and 1s. One critical thing to understand about this is that every single modern computer is designed to understand a string of 0s and 1s as the same value as every other computer, known as the ASCII system, or Unicode these days.
JayTemple
September 1, 2023 at 6:47 pm
Following up on the question around 4:30: I’m a former math professor. What math do computer science majors take?
parkour267
September 1, 2023 at 6:50 pm
Not twitter. X
Bo0sted
September 1, 2023 at 7:00 pm
Man I wish I had the articulation skills this guy has. Maybe people would start taking me more seriously in life…
Dana Nabulsi
September 1, 2023 at 7:46 pm
professor malan changed my life ❤ cs50 opened the doors to a great career in software development, and i couldn’t thank him enough for allowing such a great resource to be online and completely free!
X X Y Y
September 1, 2023 at 7:53 pm
cia operative, guaranteed
Farreach
September 1, 2023 at 7:53 pm
everyone in the comments always resorting to talking about software development as the core field for computer science where Computer science is far more than that and is the core for much better fields like Data Science or cybersecurity
M.A.
September 1, 2023 at 7:58 pm
Very great explanations. The way he answered binary into internet was brilliant
Farreach
September 1, 2023 at 8:08 pm
CompSci != IT
Diego Romero
September 1, 2023 at 8:16 pm
Many of his answers are pretty unexpected, makes me see things i’ve never thought about
salaufer
September 1, 2023 at 8:20 pm
“If anyone can learn coding, what do computer scientists do for 4 years in university?”
If you were going to the hospital for surgery, what would you say if someone showed up with a scalpel and said “don’t worry, I’m a paramedic”
Siyan Chen
September 1, 2023 at 8:37 pm
I am a CS student I wish he would be my teacher xd
Jared
September 1, 2023 at 8:59 pm
The undisputed GOAT
Jeevan Kahlon
September 1, 2023 at 9:05 pm
yo psyche
bossaddict08
September 2, 2023 at 3:02 pm
Oh boy… he is didn’t really answer the question about AI taking over programming jobs. In 10 years, the majority of programming jobs will be gone and performed by AI.
Beach&BoardFan
September 2, 2023 at 3:11 pm
Interesting so much science and tech goes into search engines, yet all they ever return is advertisements…
Jay Panchal
September 2, 2023 at 3:17 pm
great dude, he should start a course on “introduction to computer science”
dadyymusa
September 2, 2023 at 3:53 pm
in an alternate universe, eminem is black and david is indian.
Areld Cookie55™
September 2, 2023 at 4:09 pm
Oxford, Harvard, Stanford and other top Universities really does have a reason being the TOP. This guy is one of the reasons!
I happened to have the opportunity to experience a former Lecturer of Oxford University lecturing biology(entomology) and hollyyyyy sshiiiiii*tt it’s that GOOD!!! Their way of presenting concrete complex information is by far the best I ever have in my whole life.
AR0d
September 2, 2023 at 4:30 pm
Bro is smart but he never heard of majin buu.. “Muhjinboo” 😂
Alonso Quintanilla
September 2, 2023 at 4:34 pm
awesome.
Alex Van Winkel
September 2, 2023 at 4:43 pm
David Malan is A-MA-ZING !!
Owen Yhaan Ganza
September 2, 2023 at 5:06 pm
The man, The myth , The Legend
Offline
September 2, 2023 at 5:11 pm
Oh yes! It’s the CS50 guy
NIJIN JOSE
September 2, 2023 at 5:17 pm
thanks professor , always explain better than most people i have seen and listened. A CS50’s student.
Dominik Doležal
September 2, 2023 at 5:21 pm
Lets go DAVID!!
Joê-seph Ab
September 2, 2023 at 5:24 pm
Woow, I really stopped there when the person asked how 0 and 1 turn into internet as a software engineering student, I would stop for a minute (networking, binary, protocols, algorithms, …..) so much stuff to begin with to finally get the answer to that question.
EinfachSim
September 2, 2023 at 5:25 pm
„Hello World“
The Monke
September 2, 2023 at 5:30 pm
as someone studing computer science, i can confirm that he is holding back tears knowing questions this stupid exist
IblisTheMage
September 2, 2023 at 5:42 pm
Search results input are not executed precisely as he says. It is a state machine, and you are talking to one instance of that machine, that is why it can guess what you type. It is trivial to build a state machine that can take for example a million most likely query strings, predict what you are typing, and start working. It helps the later query distribution, as well as indexing of data. So first the state machine, then the query
Cover By dAn
September 2, 2023 at 5:44 pm
The guy who asks about trinary is a great example of the dunning kruger effect
Mitchell C. Flint
September 2, 2023 at 6:10 pm
GO DAVID! GO DAVID! You carried me through my first couple of CS classes in college, what a G.
Jonathan Ferrufino
September 2, 2023 at 7:03 pm
This guy’s pretty great, he should teach or something, idk.
Suhaan
September 2, 2023 at 7:12 pm
It’s x
Fern Notes
September 2, 2023 at 7:32 pm
Wow, I didn’t expect this to happen!
Rahma Muhammed
September 2, 2023 at 8:41 pm
Our favorite professor
DaBig Baby
September 2, 2023 at 9:13 pm
“hello world” is the most computer scientist greetings i could ever think of😂
A. Man
September 2, 2023 at 9:32 pm
Mr. Dj is on the booth ..lol
basam
September 3, 2023 at 11:48 am
when I run my_brain.extend(malan_brain)
it showed me brainLimitError:
abhiram thejas
September 3, 2023 at 11:59 am
Twitter what is that?
mohammed hassan
September 3, 2023 at 12:39 pm
I always love seeing David J. Malan explaining concepts in Computer Science
HONjramiroz98
September 3, 2023 at 1:42 pm
It’s PAPA David!!!! Gracias!!!
ramon e
September 3, 2023 at 1:46 pm
david the self taught web developer hero
Random_Shirts
September 3, 2023 at 2:13 pm
Mannn
I need More david
pibyte
September 3, 2023 at 2:14 pm
Explaining something incredibly complex so that a non professional can understand it is an art of its own. Thank you David.
Nicola Amoriello
September 3, 2023 at 3:50 pm
Really great video! It’s study time masked as entertainment.
I love his way to explain complex concepts in an easy and enthusiastic manner
Rinto Anugraha NQZ
September 3, 2023 at 3:52 pm
Me: What is your opinion about the best notebook?
David: Of course MacBook. You can see it on my desk.
Aman Mehra
September 3, 2023 at 3:53 pm
Love him
Chris Prendergast
September 3, 2023 at 4:22 pm
YES DAVID. CS50❤
Rakib Uddin
September 3, 2023 at 4:25 pm
very much informative and easy to understand.
darryl mayes and Black badger
September 3, 2023 at 4:31 pm
Its not twitter anymore, its x
Shear Aventador
September 3, 2023 at 4:48 pm
Big love to David❤❤❤❤❤🎉🎉🎉🎉🎉
MiNniE_NToMbZa
September 3, 2023 at 5:11 pm
Shortest 14 minutes of my life.
Ketraar
September 3, 2023 at 5:49 pm
Technically speaking your name is David J. Malan and your “title” is Professor, but dont mind me. 😛
L bozo
September 3, 2023 at 6:21 pm
The goat
İsmail Dincer
September 3, 2023 at 6:45 pm
Great teacher!
Umeh Moses
September 3, 2023 at 7:15 pm
Love this man
yazan abomokh
September 3, 2023 at 7:21 pm
I now realize why he’s a teacher at Harvard
Sanchit Batra
September 3, 2023 at 7:48 pm
David’s CS50 is the reason im a software engineer today, thanks David!
Jakaza G Chauke
September 3, 2023 at 8:02 pm
Problem with this guy. He’s too fast when speaking 🔊 I don’t understand what the rush 😫😫
kamal 🇦🇺
September 3, 2023 at 8:10 pm
Incredible professor, David!
Hasoo
September 3, 2023 at 8:30 pm
CS50 professor, his courses are amazing!
Teguh Adi Wibowo
September 3, 2023 at 8:43 pm
I love this guy. He spreads his excitement to everyone even to ordinary people.
pants721
September 4, 2023 at 11:56 am
this guy rocks
Jeferson Euclides
September 4, 2023 at 11:59 am
I could listen to this guy for a whole day and not feel distracted at all.
JessOhio2013
September 4, 2023 at 12:13 pm
So Web3 = TikTok
Andrey Nguyen
September 4, 2023 at 12:32 pm
The world is built on binary. Check mate.
George Washington
September 4, 2023 at 1:05 pm
Computer science has fallen billions must ask questions.
Uhorky Zavárané
September 4, 2023 at 1:06 pm
Best professor for Computer Science!
I took CS50
Ders ders Deers
September 4, 2023 at 1:14 pm
I took his CS course back in quarantine. BEST TEACHER EVER. He is so talented in teaching and so knowladgeable
Martin
September 4, 2023 at 1:27 pm
Software is apps. Firmware is iOS.
Panos Jr
September 4, 2023 at 2:09 pm
He’s great! I love his explanations, his lectures are additionally excellent!
Uhorky Zavárané
September 4, 2023 at 2:37 pm
NO FCKING WAY WE GOT A WEEK 12 OF CS50
Animesh Singh
September 4, 2023 at 3:19 pm
I remember taking CS50 almost 5 years back. David is still the best Teacher for me.
Yorkarenka
September 4, 2023 at 3:55 pm
The number of people who got into programming, or even into computer science in general, because of this guy is no joke.
Andrew Duran
September 4, 2023 at 4:04 pm
Saw this guy on EdX, underrated at explaining hard things easily
Abubakar Muhammed Ala
September 4, 2023 at 4:17 pm
That is David Malan. ❤️
Lugas
September 4, 2023 at 4:43 pm
The thing I don’t understand about AI is why we should even use them to write code in a high level language.
The reason high level languages like C exist is to make programming easier for humans.
An AI could probably deal with barebone assembly and write smaller, faster programs.
Using an AI to write Python is like giving your industrial machinery lunch breaks.
Death March
September 4, 2023 at 4:59 pm
CS goat
Josei
September 4, 2023 at 5:54 pm
Daviiid! Omg
Gideon Ocholi
September 4, 2023 at 7:12 pm
Thanks for CS50 David
zway
September 4, 2023 at 7:32 pm
Cs50
Code With Kazu
September 4, 2023 at 7:40 pm
Google in flesh
Richest And most powerful Guy
September 4, 2023 at 7:42 pm
Yeah
Richest And most powerful Guy
September 4, 2023 at 7:42 pm
Croooooked
Keep-Ukraine-Free
September 4, 2023 at 8:13 pm
Lol, a Harvard professor who uses the incorrect term “you and I” — for over a century the correct term has been “you and me”. Billions of people worldwide learned proper English, and to those billions of people he sounds uneducated.
(yes, I’m aware some believe his usage is correct, but they’re a minority pushing this because they can’t remember the correct rule)
Rodrigo Azevedo
September 4, 2023 at 9:09 pm
This guy explains a lot of complex things in a very simple and great way.
Md Reaz
September 5, 2023 at 6:12 am
He explains better than ChatGPT
Zaniyah Rivers
September 5, 2023 at 7:00 am
He’s not just “a computer scientist”. He’s THE computer scientist. He’s not just answering questions, He’s teaching us.
Philip DiPatrizio
September 5, 2023 at 8:17 am
What’s Twitter?
Godiegoo
September 5, 2023 at 8:40 am
Linux is the best operational sistem
Aijena Kölbl
September 5, 2023 at 9:34 am
Funfact: The motherboard put on display in the bottom left is an “ASUS Prime H510M-E”.
primusX
September 5, 2023 at 9:50 am
There are a lot of people not how to code after a CS class
J Ricky
September 5, 2023 at 10:00 am
Yeah we definitely need better professors at our university.
Drew
September 5, 2023 at 10:05 am
Taking CS50— the course Malan is famous for developing— in person was a really cool experience. It’s Harvard’s introduction to computer science targeted at people who didn’t start college intending to be come concentrate on computer science. The beautiful Victorian-era Sanders Theater with hand-carved trim (the cafetiera in the same room was the inspiration for Harry Potter’s Great Hall) filled with the energy of a modern high-budget stage production, and Malan is just a phenomenal lecturer. It’s all on YouTube (just search for CS50) if you’re looking for an absolute beginner’s intro to computer science. If you want to take it in person but aren’t a Harvard undergrad, (I wasn’t) you can enroll through Harvard Extension School and pay per credit. Haven’t priced them out in 4 or 5 years, but their courses were actually pretty affordable compared to most private colleges— competitive with state schools.
jusqua
September 5, 2023 at 10:21 am
I came here just to watch him teach again, the way he teaches changed my life, literally.
Ashtag404
September 5, 2023 at 10:22 am
Every Linux user triggered when he said “Linux, which you might NOT have heard of”.
Кирилл Фролов
September 5, 2023 at 10:35 am
For a long time i thought fIRmware was fRImware
Hien Hoang Trong
September 5, 2023 at 10:53 am
I love the way he explains. <3
Shivam Kumar
September 5, 2023 at 11:47 am
Hello world
Draven
September 5, 2023 at 12:27 pm
he speaks really well surprised he never stuttered
श्रेयस- Shreyas
September 5, 2023 at 1:02 pm
I wish they taught me like this in University
Rodrigo Ritter
September 5, 2023 at 2:06 pm
A teacher with a method to be followed and modeled… Attending CS50 was a lot of fun!
Sarcastic Mango
September 5, 2023 at 2:28 pm
Its kinda hard to keep up with a professional like him but the things that i did understand were very informative.
Moises Morales
September 5, 2023 at 2:53 pm
Absolutely amazing. Thanks Professor Malan.
Tariq Abdalla
September 5, 2023 at 3:30 pm
Wooow cant say a single word
Scott J Powers
September 5, 2023 at 3:55 pm
Ya know, almost no one is actually wondering how a search engine “works so fast” because 1. Most people don’t think about how anything works at all and 2, they don’t know or care about what all is involved in a web search.
Arturo J. Real
September 5, 2023 at 4:34 pm
CS50 changed my life – so glad to see David here!
Antonio BS
September 5, 2023 at 6:07 pm
Teamo
S V
September 5, 2023 at 7:06 pm
I wish my CS professors were so energetic and be able to explain things so well. In one class I asked a question and the professor said “What do you mean what is a parameter?” “uh…. exactly what I said, what does it mean and how does the program respond or interact with it?”
Hellscream Games
September 5, 2023 at 7:42 pm
Good video.
Annafi Hoq
September 6, 2023 at 2:19 am
Henis just lovely…. ❤ him..
furrukhjamal00
September 6, 2023 at 2:30 am
The best CS teacher in the world, when I took his course, there was a saying, if he has a class full of monkeys, those monkeys will start to code. This was so true as this monkey started to code and has been coding since 2017
HWstar
September 6, 2023 at 3:04 am
a couple bad answers, but good video overall
Bruno Vazquez
September 6, 2023 at 4:24 am
Anyone who wants to start learning coding immediately recognize him lol best free resource to exist.
StratosphereSTUDIOS
September 6, 2023 at 4:27 am
God I am so happy this man is finally getting the recognition he deserves. You’re awesome, Professor David!
MelodyJapana
September 6, 2023 at 4:31 am
Our hero! CS50 is my dream of Harvard came true.
abdelrahman anwar
September 6, 2023 at 5:15 am
it feels like every word getting out of this guy’s mouth is knowledge
anv wrk
September 6, 2023 at 5:34 am
this is a must watch for suree!
Lumeniaellina
September 6, 2023 at 7:31 am
He makes me want to take comp sci. That’s saying a lot.
Aki Laukkanen
September 6, 2023 at 7:41 am
4:00 “Anyone can learn coding” is a gross oversimplification there. Sure, any fool can string a bunch of PRINTs and GOTOs together to make the computer write “PEEPEE POOPOO” an infinite number of times. (Admit it, if you’re working in the IT industry, you did that once as a kid.) Amusing as that is, you probably don’t want that same fool to write the software that handles things like your credit card payments or cell phone traffic. Non-trivial applications require that you understand not only _how_ to code, but _why_ to code and what is the _best way_ to code a program for solving a particular problem. Plus the necessity of keeping in mind things like exception handling, input checking, cybersecurity, time complexity and scalability, and so on and so forth. Because you _really_ don’t want to find out some random stranger found a way to deposit minus three hundred dollars to your account.
Tkah Ira
September 6, 2023 at 7:50 am
Professor Malan explaining bout computer enthusiastically just like when he teaches about them. Thats real passion right there
Lightx0x
September 6, 2023 at 9:04 am
“HELLO WORLD”
So typical lol
CODER
September 6, 2023 at 9:07 am
The best teacher ever
Laxmi Devi
September 6, 2023 at 9:09 am
I don’t know much about computer science but after watching this video I realized that I REALLY don’t know anything about computer science. Everything he said went over my head😅 but he does speak well.
stanley weezy
September 6, 2023 at 10:05 am
So to speak…
DJRehab
September 6, 2023 at 11:31 am
I would trust this man with my life after doing CS50
Khalid
September 6, 2023 at 1:23 pm
The David
Remy Shoots
September 6, 2023 at 1:44 pm
this is great explanation!
Yasir Qureshi
September 6, 2023 at 1:44 pm
You’re a real pro
M C
September 6, 2023 at 2:16 pm
Distributed databases is not the only reason search engines are so fast. Data caching, indexing, categorizing of data and servers. If you search for cats, the system doesn’t have to query the data again it’s already constructed the results.
Kream 크림
September 6, 2023 at 4:10 pm
I lose respect instantly for anyone who says Ai won’t replace me, I’m a developer too and I don’t dare lie to myself
MrCoCoVerade
September 6, 2023 at 4:57 pm
Need to turn the A/C on. My boy is cookin
Ahsan S
September 6, 2023 at 5:43 pm
The hello world! 😂
Caleb Harwell
September 6, 2023 at 10:26 pm
Literally the best teacher I’ve ever seen
Alfred Zhang
September 7, 2023 at 2:25 am
Great answers, very easy to understand.
Gigi
September 7, 2023 at 4:21 am
First question was actually discussed in his CS50 class Day 1 xD
Sam
September 7, 2023 at 7:35 am
THE BEST professor I’ve had the pleasure of listening to.
Archit Kumar
September 7, 2023 at 7:42 am
7:20
Sanjay Jayabal
September 7, 2023 at 8:28 am
The process of block chain
M Dem
September 7, 2023 at 9:49 am
Finallyyyyy someone we know
S K
September 7, 2023 at 10:17 am
Some of these questions just tell me that school has failed to teach people even the bare basics.
NF Vlogs: LifeStyle
September 7, 2023 at 10:53 am
Wow amazing!
StillPickingAName
September 7, 2023 at 11:28 am
You’re one of the best teachers out there man! Loved CS50!❤
daily dose of internet2 :)
September 7, 2023 at 1:26 pm
Hello prof i attended your cs50 course it was a wonderful experience nice to see you here🥰
Aditya Vaste
September 7, 2023 at 3:27 pm
Wow !!! Such a beautiful explanations
tomsterBG
September 7, 2023 at 3:41 pm
Windows had faulty driver updates. Firmware got updated, laptop not turning on. This explains a lot. Thank you!
Tamás L
September 7, 2023 at 4:08 pm
This guy definitely has a multicore brain with active cooling because he talks so fast xD
Joshua
September 7, 2023 at 5:38 pm
He’s the CS50 guy!
Jerry Ade
September 7, 2023 at 7:23 pm
3:57 pronounced in-kay-chee
Daniel Taft
September 7, 2023 at 7:32 pm
Not calling it X yet. why